Phosphorus export by runoff from agricultural field plots with different crop cover in Lake Taihu watershed

ＩｎｔｒｏｄｕｃｔｉｏｎＷａｔｅｒｅｕｔｒｏｐｈｉｃａｔｉｏｎｉｓｏｎｅｏｆｔｈｅｇｌｏｂａｌｅｎｖｉｒｏｎｍｅｎｔａｌｐｒｏｂｌｅｍｓ ,ａｎｄａｇｒｉｃｕｌｔｕｒａｌｎｏｎｐｏｉｎｔｓｏｕｒｃｅｐｏｌｌｕｔｉｏｎｈａｓｂｅｅｎｇｉｖｅｎｉｎｃｒｅａｓｅｄａｔｔｅｎｔｉｏｎ (Ｓｈａｒｐｌｅｙ ,1994 ;Ｈａｒｒｉｓ ,1995;Ｔｉｅｓｓｅｎ ,1995;Ｔｏｎｄｅｒｓｋｉ,1996;Ｄａｎｉｅｌ,1998) .Ｌａｋｅｅｕｔｒｏｐｈｉｃａｔｉｏｎｈａｓｂｅｅｎｉｄｅｎｔｉｆｉｅｄａｓａｃｒｉｔｉｃａｌｐｒｏｂｌｅｍｏｆｓｕｒ…     

铁床／二氧化氯组合工艺处理蒽醌类染料废水

针对某染料厂蒽醌染料生产过程中排放的废水，具有COD、色度、酸度均较高的特点，采用铁床／二氧化氯组合工艺处理，废水水质得到了较好的处理，达到了当地污水处理厂的接管标准。     

中国东、南部大陆、海域与邻区(国)古构造演化关系

本文论证了中国海域基底与邻区古构造演化关系,中朝地台与京畿地块以北对应。中下扬子台拗东延为朝南古拗陷,东南地槽系连接本州地槽系,华夏地块经东海接日本“南方大陆”,华夏和印支地块隶属于南海—东海地台的边缘地块。     

论实用性是开发建设项目环境影响评价的根本属性

分析了当前开发建设项目环境影响评价报告编制中存在的百科全书式大而全的资料堆砌式报告、片面追求脱离实际要求的技术先进性、报告编写不规范等问题,明确指出实用性是环境影响评价的根本属性,坚持实用性才能发挥环境影响评价的作用.     

房地产开发项目用地遗留土壤污染评价探讨

许多房地产项目都是在工业企业原址上进行开发建设,可能存在不同程度的土壤污染。探讨了此类房地产开发项目环评中对用地遗留土壤污染问题分析评价的基本程序、方法和内容,包括原有污染调查、土壤监测分析、评价因子和评价方法及评价标准的选用、污染土壤处置和修复方案等。     

酞酸酯类有机毒物在土壤中降解规律的研究

研究了酞酸酯ＤＥＨＰ和ＤＢＦ二种增塑剂在土壤中降解规律，结果表明：土壤中ＤＥＨＰ和ＤＢＰ的降解速率可以用一级动力学方程描述，不同类型土壤对酞酸酯的降解能力是有所差别的，ＤＢＰ在土壤中比ＤＥＨＰ容易降解，土壤灭菌后，降解能力明显降低，按种接解微生物后，土壤中ＤＥＨＰ降解速率明显加快，土壤含水量和温度影响ＤＥＨＰ和ＤＢＰ的降解速率；本试验从土壤中分离出降解ＤＥＨＰ的细菌９株和真菌１１株。     

程海微囊藻毒素的结构分析

从中国云南程海湖获得的“水华”藻类样品中分离得到具有肝毒性的微囊藻毒素，用ＮＭＲ，ＭＳ等多种结构分析手段鉴定，证明主毒素是一种环状七肽，含有Ａｄｄａ，β－Ｍａｓｐ，Ｍｄｈａ和Ｇｌｕ各一分子以及２个Ａｒｇ残基。相对分子质量１０３８即为Ｍｉｃｒｏｃｙｓｔｉｎ－ＲＲ。进一步利用二维核磁共振技术测定发现此毒素有两部分，它们是同分异构体，区别仅在于Ａｄｄａ上的２个双键的构型差异。     

Kinetics of hydrogen peroxide-sulfur (IV) reaction in atmospheric precipitation

The kinetics of the reaction of dissolved S(IV) with H2O2 was studied on 59 precipitation samples collected in Southwestern China, during the period of June 1988 to October 1989, from which the oxidation rates of the reaction were measured. The extent of reaction was followed by continuous amperometric measurement of the concentrations of the reagents. The two systems (i. e. rainwater and purified water) have been studied with the same methodology under identical reaction conditions (e. g. reagent concentrations, ionic strength and temperature). The kinetics was studied in no buffer solutions. The effect of formaldehyde on the reaction has also been studied, including kinetic studies in laboratory and model calculations, and it is indicated that formaldehyde with typical atmospheric concentration exerts no influence on the reaction of dissolved S(IV) with H2O2. In addition, the activation energy of the reaction was also measured in purified water as reaction medium for temperature range 0-50℃ at pH 4.0     

船舶污染事故的调查取证与处罚原则

本文根据船舶防污监督管理的内容、特点，系统地提出了船舶·违章排污造成污染事故的调查取证程序、方法、内容、综合分析方法．还阐述了作出处罚决定的内容，防治措施的要求和依法处罚的原则．     

浅谈室内环境的污染

随着公共场所、办公与居家室内装修的普及,装修材料的多样化,室内污染问题也日益突出,本文通过对室内环境污染源、化学污染物的分析和论述,使读者对室内环境污染物及污染源有所认识,以促进人们在家庭装修和日常生活中注意室内环境的保护.